eFreesia&reg; 12V 3A 36-Watts AC/DC Power Adapter for Sirius Satellite Radio Boombox & devices requiring up to 3A of power Input: 100-240V~0.6A, 50/60Hz / Output: 12V 3A 36W Max 2.5mm x 5.5mm (Inner diameter x Outer diameter) with free 1.4mm x 3.4 tip converter adapter Compatible with Sirius Satellite Radio Boombox & other devices requiring up to 4A of power 30 day Money-Back Guarantee, and a 1-year limited warranty Power Cord included